Open Access

Electrochemistry

, volume 82 , issue 5 , pages 325-327

In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media

Toshihiro Takashima ¹

AKIRA YAMAGUCHI ²

Kenichiro HASHIMOTO ²

Hiroshi Irie ¹

Ryuhei Nakamura ³

Hide authors affiliations Show authors affiliations: 3 affiliations

Clean Energy Research Center, University of Yamanashi |

Department of Applied Chemistry, School of Engineering, The University of Tokyo |

Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science

Publication type: Journal Article

Publication date: 2014-05-04

The Electrochemical Society of Japan

Electrochemistry

scimago Q4

wos Q4

SJR: 0.283

CiteScore: 1.7

Impact factor: 1.7

ISSN: 13443542, 21862451, 20509413

DOI: 10.5796/electrochemistry.82.325

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Electrochemistry

Abstract

The mechanism of water oxidation by MnO2 electrodes was investigated at various pH values, using in situ UV-vis absorption spectroscopy. The surface Mn3+ formed as an intermediate species during water oxidation showed a d-d transition band with a peak at 510 nm at pH 6, while the peak shifted to 470 nm at pH 13. This shift of the absorption peak is attributed to the deprotonation of hydroxyl ligands of Mn3+ from OH− to O2−. Interrelation between the protonation state of Mn3+ and the O2 evolution activity of MnO2 electrocatalysts is discussed.

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Takashima T. et al. In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media // Electrochemistry. 2014. Vol. 82. No. 5. pp. 325-327.

GOST all authors (up to 50) Copy

Takashima T., YAMAGUCHI A., HASHIMOTO K., Irie H., Nakamura R. In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media // Electrochemistry. 2014. Vol. 82. No. 5. pp. 325-327.

RIS |

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RIS Copy

TY - JOUR

DO - 10.5796/electrochemistry.82.325

UR - https://doi.org/10.5796/electrochemistry.82.325

TI - In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media

T2 - Electrochemistry

AU - Takashima, Toshihiro

AU - YAMAGUCHI, AKIRA

AU - HASHIMOTO, Kenichiro

AU - Irie, Hiroshi

AU - Nakamura, Ryuhei

PY - 2014

DA - 2014/05/04

PB - The Electrochemical Society of Japan

SP - 325-327

IS - 5

VL - 82

SN - 1344-3542

SN - 2186-2451

SN - 2050-9413

ER -

BibTex |

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BibTex (up to 50 authors) Copy

@article{2014_Takashima,

author = {Toshihiro Takashima and AKIRA YAMAGUCHI and Kenichiro HASHIMOTO and Hiroshi Irie and Ryuhei Nakamura},

title = {In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media},

journal = {Electrochemistry},

year = {2014},

volume = {82},

publisher = {The Electrochemical Society of Japan},

month = {may},

url = {https://doi.org/10.5796/electrochemistry.82.325},

number = {5},

pages = {325--327},

doi = {10.5796/electrochemistry.82.325}

}

MLA

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MLA Copy

Takashima, Toshihiro, et al. “In situ UV-vis Absorption Spectra of Intermediate Species for Oxygen-Evolution Reaction on the Surface of MnO2 in Neutral and Alkaline Media.” Electrochemistry, vol. 82, no. 5, May. 2014, pp. 325-327. https://doi.org/10.5796/electrochemistry.82.325.

Publisher

The Electrochemical Society of Japan

Journal

Electrochemistry

scimago Q4

wos Q4

SJR

0.283

CiteScore

1.7

Impact factor

1.7

ISSN

13443542 (Print)

21862451 (Electronic)

20509413 (Print)